136 Trans. Acad, Sci. of St. Louis 
No specimens are to be found in any of the Amer- 
ican herbaria and Harvey left no specimens in the 
University of Arkansas collections. 
Gentianaceae: 
Bartonia virginica (L.) B. S. P. 10586 Washing- 
ton, Hempstead Co.; 26476 Lonsdale, Garland Co. 
Centaurium texense (Griseb.) Fernald. (Erythraea 
texensis Griseb. Northern Arkansas border counties. 
Gentiana flavida Gray. (Dasystephena flavida 
Britton.) Magazine Mountain, Logan Co. 
Apocynaceae: 
Amsonia ludoviciana Vail. Fayetteville, Wash- 
ington Co.; Lonoke, Lonoke Co. 
Apocynum cannabinum var. pubescens (R. Br.) 
DC. 6092 Corning, Clay Co. 
Vinca minor L, Periwinkle or Myrtle. Wash- 
ington Co. Escaped locally from cultivation. 
Asclepiadaceae : . 
Asclepias stenophylla Gray. 8397 Cotter, Marion Co. 
Asclepias Sullivantii Engelm. Fayetteville, Wash- 
ington Co. 
Asclepias perennis Walt. Corning, Clay Co. 
Asclepias purpurascens L. 12648 Mena, Polk Co. 
Acerates floridana (Lam.) Hitche. 25018 Hazen, 
Prairie Co. 
Convolvulaceae: 
Cuscuta cuspidata Engelm. 16322 Fulton, Hemp- 
stead Co. 
Stylisma humistrata (Walt.) Chapman. 8111 Gif- 
ford, Hot Springs Co. : 
